Use vernier caliper matters needing attention and maintenance points

Caliper is a kind of measuring length, diameter, depth of measuring tool. Vernier caliper by the main ruler and attached to the main ruler can slide is composed of the cursor. Main ruler and cursor of vernier caliper, there are two pairs of activity, respectively is the internal claws and outside measurement claw, measure within claw usually used for measuring inside diameter, outside measurement claw is usually used to measure the length and diameter. Vernier caliper what are the considerations and key points of maintenance? Vernier caliper is a precision measuring tools, to should take put down gently, shall not be collision or fall underground. Don't used to measure the roughness of the object when using, lest damage quantity, should be placed in a dry place when not in use to prevent rust. When measured, should first twist elastic screw fixation, move the cursor can't overexert. Two claws and contact of the object under test shoulds not be too tight. Can't cause the clamping objects move in the quantity of claw. When reading, the line of sight with feet vertically. Available for fixed readings, fastening screws to fix the cursor on the feet, to prevent slipping. Actual measurement, for the same length should be measured a few times more, take the average to eliminate accident. Maintenance 1, run inspection before every day use, first check if the zero graduation of vernier caliper alignment, calibration is clearly visible, whether move smoothly and have the caliper can be normal use, otherwise the caliper for repair or replacement new measurement must be effective caliper, and check according to the operation rules of equipment failure treatment method. 2. Note: use vernier caliper, with cotton to wipe clean. Long-term need not when it should be rubbed butter or oil, two paw closed volume and tighten the fastening screws, into the caliper cover inside the box, and avoid placed in the dust, moisture, super-cooling overheat and environment containing alkali vapor.